CN205260010U - Balanced poor beam -pumping unit of it flat - Google Patents
Balanced poor beam -pumping unit of it flat Download PDFInfo
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- CN205260010U CN205260010U CN201521061672.XU CN201521061672U CN205260010U CN 205260010 U CN205260010 U CN 205260010U CN 201521061672 U CN201521061672 U CN 201521061672U CN 205260010 U CN205260010 U CN 205260010U
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Abstract
The utility model provides a balanced poor beam -pumping unit of balance, includes pylon, walking beam, horse head, hydraulic pressure station, balanced reorganization piece, brake mechanism and the balanced actuating mechanism of balance. The balanced actuating mechanism of balance, including the through rod two -way cylinder, the one end of through rod two -way cylinder through rod and first pulley leg joint, first stay cord is walked around first movable pulley and is connected with the down pull rod of horse head articulated after first fixed pulley direction. It is connected with the sucker rod to fix the lower extreme of the outstanding rope on the horse head, the other end and the second pulley leg joint of through rod, second stay cord are walked around the second movable pulley and are connected with adjusting yoke after second fixed pulley direction, and the adjusting yoke upper end is articulated with the walking beam rear end. The utility model discloses work efficiency is high, and is energy -conserving effectual, long service life.
Description
Technical field
The utility model relates to a kind of oil production equipment, particularly relates to a kind of balance-type type balanced differences oil pumper.
Background technology
At present in oil extraction in oil field process, the oil pumper particularly using in heavy oil production process, ubiquity is short service life, inefficiency, the problem such as particularly consume energy large, 14 type oil pumpers as logical in a Daepori of current use, 4.5 meters of strokes, 2.5 times/min of spurt, driving power 37kw ~ 45kw lifting force is 21 tons, descending power is 17 tons, average running current is 60 peaces, motor is from starting 750r/min ~ 118r/min, merit 10% left and right is lost in the transmission of group band, reductor decelerates to 2.5r/min from 118r/min, speed ratio is very large, although increased moment of torsion, but directly lose between merit 30 ~ 40%, lose again 20 ~ 30% at the effort lever that adds poor mill resistance and amplification stroke, in mechanical transfer process, just lose 70 ~ 80%, actual motion just applies 20 ~ 30%, mechanical transfer link is to cause the principal element of highly energy-consuming.
Utility model content
The purpose of this utility model, is to provide a kind of balance-type type balanced differences oil pumper, and small investment, to be convenient to maintenance, long service life, production efficiency high, good energy-conserving effect.
The technical scheme adopting is:
A kind of balance-type type balanced differences oil pumper, comprises pylon, walking beam, horse head, Hydraulic Station, balance weight assembly, braking mechanism and balance-type type balance driving mechanism, and walking beam is arranged on the top of pylon, and walking beam is connected with pylon upper end by central pivot point axle. Horse head is fixed on one end of walking beam, and balance weight assembly is installed in the other end of walking beam, it is characterized in that:
Described balance-type type balance driving mechanism, comprises through rod two-way cylinder, the first stay cord, the first pulley assembly, the second stay cord, the second pulley assembly and guard shield.
The first pulley assembly, comprises the first fixed pulley, the first movable pulley and descending rod assembly, the second pulley assembly, comprises the second fixed pulley, the second movable pulley, adjusting yoke.
The first movable pulley, through rod two-way cylinder, the second movable pulley are installed in guard shield, and the first fixed pulley and the second fixed pulley are installed in respectively the two ends of guard shield, and the first fixed pulley is positioned at the left side of the first movable pulley, and the second fixed pulley is positioned at the right side of the second movable pulley.
The first movable pulley is installed in the groove of the first moving pulley bracket, and the two ends of the wheel shaft of the first movable pulley are respectively through inserting in the chute of offering on two side in guard shield after the axis hole on the groove front and rear wall of first axle bed and the first pulley bracket. On first axle bed, be equiped with travel switch. The left end of the cylinder rod of the two oil cylinders of through rod is connected with the first pulley bracket. The first fixed pulley is installed in the left end of guard shield, the wheel shaft two ends of the first fixed pulley are fixedly connected with guard shield respectively, one end of the first stay cord is fixed on the first stay cord securing member, stay cord securing member is fixed in guard shield, the other end of the first stay cord is walked around the first movable pulley, then is connected with descending pull bar crossbeam after the first fixed pulley guiding. The second movable pulley, the second fixed pulley are installed in respectively in guard shield, are positioned at the right side of through rod two-way cylinder. The assembly relation of the second movable pulley, the second fixed pulley, the second stay cord, through rod two-way cylinder is identical with the assembly relation of the first movable pulley, the first fixed pulley, the first stay cord, through rod two-way cylinder.
Descending rod assembly, comprises the first descending pull bar, the second descending pull bar, and the lower end of the first descending pull bar and the second descending pull bar is fixedly connected with pull bar crossbeam respectively, and its upper end is connected with horse head two side by the first bearing pin. On horse head, be fixed with outstanding rope, the other end of outstanding rope is connected with sucker rod, and insert in well head sucker rod bottom. The first moving pulley bracket is connected with one end of the through rod of through rod two-way cylinder. Second stay cord one end is fixed on the second stay cord fixture in guard shield, and the other end is walked around the second movable pulley, after the second fixed pulley guiding, is connected with adjusting yoke lower end, and adjusting yoke upper end is connected with the rear end of walking beam by adjusting yoke axle.
Balance Iron assembly, comprises that Balance Iron drives oil cylinder and Balance Iron, and Balance Iron upper end is connected with Balance Iron support, is installed in the Orbit Matching clamping of walking of Balance Iron on top wheel and the walking beam two side of both sides, Balance Iron support upper end, is slidably matched. Balance Iron drives oil cylinder tailstock to be fixed on walking beam, and Balance Iron drives the piston rod of oil cylinder to be connected with Balance Iron support.
Braking mechanism, comprises brake disc and brake disc arrestment mechanism, and brake disc arrestment mechanism comprises drag friction chip module, hydraulic lock bearing pin, hydraulic lock body support frame, brake-fluid cylinder pressure and the fastening dish that connects. Brake disc two ends are bolted on respectively on walking beam.
The research and development of balance-type type balanced differences oil pumper core technology principle, fill up the disadvantage of oil pumper reactive loss waste, capture large stratigraphic well, consumption reduction plays remarkable effect, efficiently solve heavy oil wells and inclined shaft hoisting power is large, the large series of problems that waits of descending backhaul resistance, after transformation, production run is laborsaving, only drive the power of upper and lower balanced differences 1/2nd, just can easily move, embody the operation of balance-type type balanced differences balance of well pumping unit laborsaving, power saving, two ends tension equalizer is identical, equidistant etc. power, alternate reciprocating motion, make mechanical movement acting safe and reliable, electric energy surmounts the energy-conservation limit of any type (promote 20 tons and only need 8-15 electricity peace stream), obtain significant energy-efficient effect. by balance-type type balanced differences power-saving technology principle, can reach identical power savings to existing beam pumping unit transformation.
14 type oil pumpers of simulation test, 4.5 meters of strokes, 2.5 beats/min of jig frequencies, three grades of bars, 1700 meters of well depths, 21 tons of lifting weights, 17 tons of descending weight, driving power motor 37kw, average running current 60 is pacified.
1. cylinder diameter 100mm, subtracts shank diameter 50mm, 2.25 meters of strokes, and capacity is 14.4L, 5.8 tons of 4Mpa outputs.
2. plunger displacement pump 45 types, rotating speed per minute be 1600 discharge capacities while turning per second be 1.2L.
3. jig frequency: (14.4L/1.2*2=24 makes a round trip second), (60/24)=2.5 beat/min.
The beneficial effect that the utility model is obtained is:
1, hydraulic-driven, driving be the power of upper and lower balanced differences 1/2nd, for driving force, laborsaving, power saving, realize energy-efficient. The problems such as oblique ascension, heavy oil wells, the large power consumption height of descending backhaul resistance are solved.
2, mainly adopt Balance principle hydraulic-driven, movable pulley is doubly put distance and is waited fusion complementary theory. The features such as reasonable in design is simple, and power is little, consumes energy low, and efficiency is high, economize on electricity. Frequency control motor adjusts number convenient and swift, controls and saves time flexibly. Hydraulic jack drives and replaces the heavy reductor of power consumption benzene, has brought into play greatly the practical characteristic of oil cylinder. The speed of travel is low, and thrust output is large, directly drives, and energy transmission link is few. Low pressure operation (4 ~ 5Mpa) has alleviated mechanical impact and resonance, Based Intelligent Control electromechanical integration, adjustable range is wide, simple to operate, and oil cylinder and movable pulley perfect combination are doubly put distance, solve oil pumper extension stroke problem, raising stroke, reduction jig frequency are played a role, can reduce the mechanical load frictional resistance of rod tube pump simultaneously, increase the service life, increase journey and can reach the maximum limitation that uses of pump efficiency, improve crude output and efficiency. The power such as balanced design two ends are equidistant in addition operation, makes mechanical efficiency up to more than 95%, and reactive loss is little, embody laborsaving, the remarkable result that power saving is energy-efficient.
Mechanical transfer link is few, and reactive loss is little, and stroke maximum can reach 6 ~ 8 meters. Solve oil pumper and be difficult to realize the problem such as large stroke and efficiency low energy consumption height. Also solved lever force-saving takes apart from problem simultaneously.
To existing oil pumper transformation easily.
Brief description of the drawings
Fig. 1 is a kind of example structure schematic diagram of the present utility model.
Fig. 2 is descending rod assembly structural representation.
Fig. 3 is quiet pulley, movable pulley, guard shield, through rod two-way cylinder assembling schematic diagram.
Fig. 4 is braking mechanism schematic diagram.
Fig. 5 is the left view of Fig. 4.
Fig. 6 and Fig. 7 are Balance Iron assembly and walking beam assembly structure schematic diagram.
Fig. 8 is the first stay cord, the first fixed pulley, the second fixed pulley, through rod two-way cylinder, the second fixed pulley, the second movable pulley, the second stay cord, left guard shield, cylinder shield, right guard shield assembling schematic diagram.
Fig. 9 is left shield structure schematic diagram.
Figure 10 is right shield structure schematic diagram.
Figure 11 is through rod two-way cylinder structural representation. Number in the figure is: 62 for dust ring, 63 for this special envelope, 64 for fluorine bronze guide ring, 65 for sealing ring, 66 for oil cylinder piston, 67 for honeybee lattice enclose, 68 for oil cylinder piston fluorine bronze guide ring, 69 for piston inner hole sealing ring, 70 for combination fixture block and jump ring, 71 for cylinder rod (through rod), 72 for hydraulic cylinder, 73 for anti-impact shock-absorbing (nitrile rubber cover), 74 for oil cylinder cover, 75 for oil cylinder gland card lobe and jump ring (sub-assembly), 76 for connecting thread, 77 be oil duct.
Figure 12 is two-way hydraulic power unit schematic diagram. Number in the figure is: 78 for motor, 79 is for plunger displacement pump, 80 is for check valve, 81 is for the pressure valve of overflowing, 82 is for reversal valve, 83 is for one-way hydraulic lock, 84 is for two-way surge tank, 85 is for air-cooled radiator, 86 is for hydraulic oil container, 87 is for temperature control oil level indicator, 88 is for permanent magnetism oil filter, 89 is for ball valve, 90 is for the single two radiating tubes, 47 of pipeline buffering are respectively double loop radiating tube for line filter, 91 and 92, and 93 is through rod two-way cylinder.
Detailed description of the invention
Embodiment mono-
A kind of balance-type type balanced differences oil pumper, comprises pylon 1, walking beam 2, horse head 3, Hydraulic Station 4, balance weight assembly, braking mechanism and balance-type type balance driving mechanism, and walking beam 2 is arranged on the top of pylon 1, and walking beam 2 is connected with pylon 1 upper end by central pivot point axle 5. Horse head 3 is fixed on one end of walking beam 2, and balance weight assembly is installed in the other end of walking beam 2, it is characterized in that:
Described balance-type type balance driving mechanism, comprises through rod two-way cylinder 6, the first stay cord 7, the first pulley assembly, the second stay cord 8, the second pulley assembly and guard shield 18.
The first pulley assembly, comprises the first fixed pulley 9, the first movable pulley 10 and descending rod assembly 11; The second pulley assembly, comprises the second fixed pulley 12, the second movable pulley 13 and adjusting yoke 14.
The first movable pulley 10, through rod two-way cylinder 6, the second movable pulley 13 are installed in guard shield 18, the first fixed pulley 9 and the second fixed pulley 12 are installed in respectively the two ends of guard shield 18, the first fixed pulley 9 is positioned at the left side of the first movable pulley 10, and the second fixed pulley 12 is positioned at the right side of the second movable pulley 13.
The first movable pulley 10 is installed in the groove of the first moving pulley bracket 23, and the two ends of the wheel shaft of the first movable pulley 10 are respectively through inserting in the chute of offering on the interior two side of guard shield 18 after the axis hole on the groove front and rear wall of first axle bed 45 and the first moving pulley bracket 23. On first axle bed 45, be equiped with travel switch 46. The left end of the cylinder rod 25 of the two oil cylinders 6 of through rod is connected with the first pulley bracket 23. The first fixed pulley 9 is installed in the left end of guard shield 18, wheel shaft 48 two ends of the first fixed pulley are fixedly connected with guard shield 18 respectively, one end of the first stay cord 7 is fixed on the first stay cord securing member 49, the first stay cord securing member 49 is fixed in guard shield 18, the other end of the first stay cord 7 is walked around the first movable pulley 10, then is connected with descending pull bar crossbeam 19 after the first fixed pulley 9 guiding. The second movable pulley 13, the second fixed pulley 12 are installed in respectively in guard shield 18, are positioned at the right side of through rod two-way cylinder 6. The assembly relation of the second movable pulley 13, the second fixed pulley 12, the second stay cord 8, through rod two-way cylinder 6 is identical with the assembly relation of the first movable pulley 10, the first fixed pulley 9, the first stay cord 7, through rod two-way cylinder 26.
Descending rod assembly 11, comprises that the lower end of the first descending pull bar 15, the descending pull bar 15 of the second descending pull bar 16, the first and the second descending pull bar 16 is fixedly connected with pull bar crossbeam 19 respectively, and its upper end is connected with horse head 3 two sides by the first bearing pin 17. On horse head 3, be fixed with outstanding rope 20, the other end of outstanding rope 20 is connected with sucker rod 21, and insert in well head 22 sucker rod 21 bottoms. The first moving pulley bracket 23 is connected with one end of the through rod 25 of through rod two-way cylinder 6. Second stay cord 8 one end are fixed on the second stay cord fixture on guard shield 18 inwalls. The other end is walked around the second movable pulley 13, after the second fixed pulley 12 guiding, is connected with adjusting yoke 14 lower ends, and adjusting yoke 14 upper ends are connected with the rear end of walking beam 2 by adjusting yoke axle 26.
Balance Iron assembly, comprises that Balance Iron drives oil cylinder 27 and Balance Iron 28, and Balance Iron 28 upper ends are connected with Balance Iron support 61, is installed in the top wheel 30 of Balance Iron support 61 both sides, upper end and mates clamping with the Balance Iron walking track 60 on walking beam 3 two sides, is slidably matched. Balance Iron drives oil cylinder 27 tailstocks to be connected on walking beam 2 by bearing pin 58, and Balance Iron drives the piston rod 57 of oil cylinder to be connected with Balance Iron support 61.
Braking mechanism, comprises brake disc 29 and brake disc arrestment mechanism, and brake disc arrestment mechanism comprises drag friction chip module 24, hydraulic lock bearing pin 31, hydraulic lock body support frame 32, brake-fluid cylinder pressure 33 and the fastening dish 34 that connects. Brake disc 29 two ends are bolted on respectively on walking beam 2.
Embodiment bis-
Embodiment bis-is structurally basic identical with embodiment mono-, and its difference is:
Described guard shield 18 is connected and composed by flange by left guard shield 43, cylinder shield 60 and right guard shield 44. The first movable pulley 10 is installed in left guard shield 43, and through rod two-way cylinder 6 is installed in cylinder shield 60, and the second movable pulley 12 is installed in right guard shield 44. The first fixed pulley 9 is installed in the left end of left guard shield 43, and the second fixed pulley 12 is installed in right guard shield 44 right-hand members.
Embodiment tri-
Embodiment tri-is structurally basic identical with embodiment mono-or embodiment bis-, and its difference is:
Described Balance Iron support 61, comprises bracket shell 50, and bracket shell 50 top inner chambers are equiped with four pulleys 51 and four top wheels 52. Bottom, the forward and backward two side of walking beam 2 is fixed with respectively Balance Iron walking track 53, and bracket shell 50 is folded on walking beam 2. 51 points forward and backward two groups, four pulleys, set up respectively on forward and backward two Balance Irons walking track 53. Bracket shell 50 bottoms are provided with upset axle bed 54, and upset axle bed 54 is connected with bracket shell 50 by trip shaft 55, and upset axle bed 54 is connected with Balance Iron connecting plate 56, and Balance Iron 28 upper surfaces are connected with Balance Iron connecting plate 56. Balance Iron drives the piston rod 57 of oil cylinder 27 to be connected by the 7th bearing pin 59 with bracket shell 50, and Balance Iron drives the tailstock of oil cylinder 27 to be connected by the 8th bearing pin 58 with walking beam 2.
Hydraulic lock support is connect by hydraulic lock bearing pin 31 by left socle 35 and right support 36. Drag friction assembly is made up of left bremsbelage 38 and right bremsbelage 37. Drag friction assembly is installed in hydraulic lock support 32 jaw places, upper end, on left socle 35 inwalls, is fixed with left bremsbelage 38, is fixed with right bremsbelage 37 on right support 36 inwalls. Brake-fluid cylinder pressure 33 is installed in the jaw place, lower end of hydraulic lock support 32, and the piston rod 39 of brake-fluid cylinder pressure 33 is connected by the 5th bearing pin 40 with right support 36 lower ends. The tailstock 58 of brake-fluid cylinder pressure 33 is connected by the 6th bearing pin 41 with left socle 35, brake disc 29 is folded in the upper end pincers 42 of hydraulic lock support, can contact with right bremsbelage 37 with left bremsbelage 38, when brake, drive by brake-fluid cylinder pressure 33, make two bremsbelages clamp brake disc 29 and realize braking.
Claims (6)
1. a balance-type type balanced differences oil pumper, comprise pylon (1), walking beam (2), horse head (3), Hydraulic Station (4), balance weight assembly, braking mechanism and balance-type type balance driving mechanism, walking beam (2) is arranged on the top of pylon (1), and walking beam (2) is connected with pylon (1) upper end by central pivot point axle (5); Horse head (3) is fixed on one end of walking beam (2), and balance weight assembly is installed in the other end of walking beam (2), it is characterized in that:
Described balance-type type balance driving mechanism, comprises through rod two-way cylinder (6), the first stay cord (7), the first pulley assembly, the second stay cord (8), the second pulley assembly and guard shield (18);
The first pulley assembly, comprises the first fixed pulley (9), the first movable pulley (10) and descending rod assembly (11); The second pulley assembly, comprises the second fixed pulley (12), the second movable pulley (13) and adjusting yoke (14);
The first movable pulley (10), through rod two-way cylinder (6), the second movable pulley (13) are installed in guard shield (18), the first fixed pulley (9) and the second fixed pulley (12) are installed in respectively the two ends of guard shield (18), the first fixed pulley (9) is positioned at the left side of the first movable pulley (10), and the second fixed pulley (12) is positioned at the right side of the second movable pulley (13);
The first movable pulley (10) is installed in the groove of the first moving pulley bracket (23), and the two ends of the wheel shaft of the first movable pulley (10) are respectively through inserting in the chute of offering on the interior two side of guard shield (18) after the axis hole on the groove front and rear wall of first axle bed (45) and the first pulley bracket (23);
The left end of the cylinder rod (25) of the two oil cylinders (6) of through rod is connected with the first pulley bracket (23); The first fixed pulley (9) is installed in the left end of guard shield (18), wheel shaft (48) two ends of the first fixed pulley are fixedly connected with guard shield (18) respectively, one end of the first stay cord (7) is fixed on the first stay cord securing member (49), the first stay cord securing member (49) is fixed in guard shield (18), the other end of the first stay cord (7) is walked around the first movable pulley (10), then is connected with descending pull bar crossbeam (19) after the first fixed pulley (9) guiding; The second movable pulley (13), the second fixed pulley (12) are installed in respectively in guard shield (18), are positioned at the right side of through rod two-way cylinder (6); The assembly relation of the second movable pulley (13), the second fixed pulley (12), the second stay cord (8), through rod two-way cylinder (6) is identical with the assembly relation of the first movable pulley (10), the first fixed pulley (9), the first stay cord (7), through rod two-way cylinder (26);
Descending rod assembly (11), comprise the first descending pull bar (15), the second descending pull bar (16), the lower end of the first descending pull bar (15) and the second descending pull bar (16) is fixedly connected with pull bar crossbeam (19) respectively, and its upper end is connected with horse head (3) two side by the first bearing pin (17); On horse head (3), be fixed with outstanding rope (20), the other end of outstanding rope (20) is connected with sucker rod (21), and insert in well head (22) sucker rod (21) bottom; The first moving pulley bracket (23) is connected with one end of the through rod (25) of through rod two-way cylinder (6); The second stay cord (8) one end is fixed on the second stay cord fixture on guard shield (18) inwall; The other end is walked around the second movable pulley (13), after the second fixed pulley (12) guiding, is connected with adjusting yoke (14) lower end, and adjusting yoke (14) upper end is connected with the rear end of walking beam (2) by adjusting yoke axle (26).
2. a kind of balance-type type balanced differences oil pumper according to claim 1, is characterized in that:
Described Balance Iron assembly, comprise that Balance Iron drives oil cylinder (27) and Balance Iron (28), Balance Iron (28) upper end is connected with Balance Iron support (61), be installed in the top wheel (30) of Balance Iron support (61) both sides, upper end and mate clamping with the Balance Iron walking track (60) on walking beam (2) two side, be slidably matched; It is upper that Balance Iron drives oil cylinder (2) tailstock to be connected to walking beam (2) by bearing pin (58), and Balance Iron drives the piston rod (57) of oil cylinder to be connected with Balance Iron support (61).
3. a kind of balance-type type balanced differences oil pumper according to claim 1, is characterized in that:
Described braking mechanism, comprise brake disc (29) and brake disc arrestment mechanism, brake disc arrestment mechanism comprises drag friction chip module (24), hydraulic lock bearing pin (31), hydraulic lock body support frame (32), brake-fluid cylinder pressure (33) and the fastening dish (34) that connects; Brake disc (29) two ends are bolted on respectively on walking beam (2);
Hydraulic lock support is connect by hydraulic lock bearing pin (31) by left socle (35) and right support (36); Drag friction assembly is made up of left bremsbelage (38) and right bremsbelage (37); Drag friction assembly is installed in jaw place, hydraulic lock support (32) upper end, on left socle (35) inwall, is fixed with left bremsbelage (38), on right support (36) inwall, is fixed with right bremsbelage (37); Brake-fluid cylinder pressure (33) is installed in the jaw place, lower end of hydraulic lock support (32), and the piston rod (39) of brake-fluid cylinder pressure (33) is connected by the 5th bearing pin (40) with right support (36) lower end; The tailstock (58) of brake-fluid cylinder pressure (33) is connected by the 6th bearing pin (41) with left socle (35), and brake disc (29) is folded in the upper end pincers (42) of hydraulic lock support, can contact with right bremsbelage (37) with left bremsbelage (38).
4. according to a kind of balance-type type balanced differences oil pumper described in claim 1,2 or 3, it is characterized in that:
Described Balance Iron support (61), comprises bracket shell (50), and bracket shell (50) top inner chamber is equiped with four pulleys (51) and four top wheels (52); Bottom, the forward and backward two side of walking beam (2) is fixed with respectively Balance Iron walking track (53), and bracket shell (50) is folded on walking beam (2); Four pulleys (51) divide forward and backward two groups, set up respectively on forward and backward two Balance Irons walking tracks (53); Bracket shell (50) bottom is provided with upset axle bed (54), upset axle bed (54) is connected with bracket shell (50) by trip shaft (55), upset axle bed (54) is connected with Balance Iron connecting plate (56), and Balance Iron (28) upper surface is connected with Balance Iron connecting plate (56); Balance Iron drives the piston rod (57) of oil cylinder (27) to be connected by the 7th bearing pin (59) with bracket shell (50), and Balance Iron drives the tailstock of oil cylinder (27) to be connected by the 8th bearing pin (58) with walking beam (2).
5. according to a kind of balance-type type balanced differences oil pumper described in claim 1,2 or 3, it is characterized in that:
Described guard shield (18) is connected and composed by flange by left guard shield (43), cylinder shield (60) and right guard shield (44); The first movable pulley (10) is installed in left guard shield (43), and through rod two-way cylinder (6) is installed in cylinder shield (60), and the second movable pulley (2) is installed in right guard shield (44); The first fixed pulley (9) is installed in the left end of left guard shield (43), and the second fixed pulley (12) is installed in right guard shield (44) right-hand member.
6. according to a kind of balance-type type balanced differences oil pumper described in claim 1,2 or 3, it is characterized in that:
On described first axle bed (45), be equiped with travel switch (46).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521061672.XU CN205260010U (en) | 2015-12-20 | 2015-12-20 | Balanced poor beam -pumping unit of it flat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521061672.XU CN205260010U (en) | 2015-12-20 | 2015-12-20 | Balanced poor beam -pumping unit of it flat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205260010U true CN205260010U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521061672.XU Expired - Fee Related CN205260010U (en) | 2015-12-20 | 2015-12-20 | Balanced poor beam -pumping unit of it flat |
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| Country | Link |
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| CN (1) | CN205260010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464627A (en) * | 2015-12-20 | 2016-04-06 | 靳宝才 | Scale type balance difference oil pumping unit |
-
2015
- 2015-12-20 CN CN201521061672.XU patent/CN205260010U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464627A (en) * | 2015-12-20 | 2016-04-06 | 靳宝才 | Scale type balance difference oil pumping unit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20181220 |